FastAPI · JWT · REST
API Layer
FastAPI routes expose authenticated workflows for design, CAD jobs, trends, supply, billing, and admin operations. Every endpoint is versioned and secured.
Architecture
Platform Architecture
The production stack combines FastAPI, PostgreSQL, Redis, Celery workers, and a Next.js control surface — deployed as containerized services with full observability.
Stack
Four Layers, One System
Celery · Redis · Workers
Async Workloads
Celery workers process CAD generation and trend ingestion/scoring asynchronously with configurable retry logic and periodic task scheduling.
PostgreSQL · SQLAlchemy · Alembic
Data Layer
SQLAlchemy models persist users, jobs, trend signals, invoices, subscriptions, usage records, and orders with full migration support.
Next.js · React · Three.js
Frontend
Next.js app routes are wired to live APIs for workspace and admin use. WebGL-powered 3D visualization for CAD previews.
